Top Front End Developer Jobs in Bucharest

Design, develop, and maintain front-end applications with a focus on user experience, integration with APIs, and adherence to best practices, while collaborating within an agile team.

As a Frontend Engineer, you will build and enhance frontend solutions for financial configurations, develop internal tools, and create customer-facing interfaces, ensuring high performance and quality in financial applications.

Build and maintain production-grade React + TypeScript frontends, implement design systems and component libraries, create responsive/mobile-first UIs, integrate with .NET REST APIs, and deploy frontends using AWS CloudFront/S3/Amplify with strong visual polish and UX focus.

Implement pixel‑perfect, responsive, and accessible UIs from Figma; convert designs to semantic HTML5, CSS/SCSS and JavaScript; build reusable UI components and design systems; optimize performance (lazy loading, code splitting, dynamic imports, bundle analysis); apply SSR/SSG/ISR where appropriate; ensure cross‑browser compatibility and WCAG accessibility; integrate with REST APIs; write automated tests and documentation; participate in code reviews and maintain front‑end architecture quality.

Lead technical strategy for scalable CMS applications, optimize frontend infrastructure, oversee code quality, and enhance team productivity in a gaming-focused environment.

Responsible for developing and customizing frontend components in Magento 2, integrating with backend systems, ensuring accessibility, collaborating on technical solutions, and optimizing frontend performance.

The Senior Associate Frontend Web Developer will enhance the LSEG web platform using Angular, collaborate with teams, and ensure high-quality solutions.

Lead the Pro team to design, develop, and deliver frontend systems for Kraken's trading interface, focusing on user experience and mentoring engineers.

The Software Engineer will design and maintain payment processing systems, mentor other engineers, and ensure security in client transactions within the crypto ecosystem.

Design, implement, and maintain frontend applications and internal tools. Own delivery of high-visibility features, collaborate with cross-functional teams, mentor peers, and ensure performant, accessible, polished user interfaces integrated with backend systems.

Design and implement developer-facing UI from Figma to production using Hotwire (Turbo + Stimulus) and ViewComponents. Own the dashboard, API playgrounds, docs, marketing site, and data visualization. Optimize performance and bundle size, maintain a coherent component system, and ship polished, production-ready front-end with tests and CI/CD.

Develop high-performance front-end solutions for banking applications, delivering stable code while mentoring team members and enhancing software tailored to client needs.

Full-stack Developers at QuantCo build user interfaces for machine learning solutions, collaborating with data scientists and engineers to deliver actionable products.

As an AI-First Frontend Engineer, you will develop high-performance, AI-integrated user interfaces for telehealth applications, manage team workflows, and optimize web performance.

Join Cerebras Systems to optimize and develop frontend compiler infrastructure for PyTorch models on their unique wafer-scale AI platform, focusing on model representation and optimization.

The Senior Frontend Engineer will design and build high-performance applications, mentor junior engineers, and collaborate with teams to enhance the LSEG Workspace platform.

Design and maintain a modular, high-performance frontend: implement a pixel-perfect design system, optimize rendering and bundle sizes, architect client-side state for real-time data, integrate complex APIs, and ensure global availability and operational readiness for a Web3 consumer platform.

Design, develop, and maintain high-quality React applications, lead technical decisions, mentor engineers, and optimize performance in a fast-paced environment.

Build, test, and optimize responsive web applications using Next.js and React. Collaborate with designers and back-end engineers to implement high-performance, cross-browser UIs, manage state with Redux/Context API, integrate RESTful APIs, and debug front-end issues while following best practices and maintaining clean, scalable code in a remote team.

Serve as a senior Java full-stack engineer building and maintaining backend services for blockchain applications, integrate APIs with React/Vue frontends, design scalable enterprise blockchain solutions, troubleshoot complex backend issues, and collaborate with cross-functional teams to apply best practices.

The role involves building creative tools for content editing, enhancing features with PixiJS and WebGL, and improving collaboration workflows.

Join Dragonfly's talent network as a Senior Frontend Engineer. Connect with global portfolio companies in the crypto ecosystem.

As a Senior Frontend Engineer, you will develop Online banking processes with Angular, mentor junior engineers, and ensure scalable solutions.

Build and optimize a high-performance web photo editor using React, TypeScript, and Next.js. Implement responsive interfaces for heavy in-browser image processing, contribute to frontend architecture (Canvas, WebAssembly, multithreading), and ensure top-tier performance and code quality.

Build and ship full-stack features for North, develop autonomous agents that access sensitive enterprise data, productionize state-of-the-art models, write minimal, secure low-resource code, and collaborate with researchers to deploy performant RAG/agentic applications while prioritizing security and user experience.